x86: convert to generic helpers for IPI function calls
This converts x86, x86-64, and xen to use the new helpers for
smp_call_function() and friends, and adds support for
smp_call_function_single().
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/asm-x86/hw_irq_32.h b/include/asm-x86/hw_irq_32.h
index ea88054..a87b132 100644
--- a/include/asm-x86/hw_irq_32.h
+++ b/include/asm-x86/hw_irq_32.h
@@ -32,6 +32,7 @@
void reschedule_interrupt(void);
void invalidate_interrupt(void);
void call_function_interrupt(void);
+void call_function_single_interrupt(void);
#endif
#ifdef CONFIG_X86_LOCAL_APIC
diff --git a/include/asm-x86/hw_irq_64.h b/include/asm-x86/hw_irq_64.h
index 0062ef3..fe65781 100644
--- a/include/asm-x86/hw_irq_64.h
+++ b/include/asm-x86/hw_irq_64.h
@@ -68,6 +68,7 @@
#define ERROR_APIC_VECTOR 0xfe
#define RESCHEDULE_VECTOR 0xfd
#define CALL_FUNCTION_VECTOR 0xfc
+#define CALL_FUNCTION_SINGLE_VECTOR 0xfb
/* fb free - please don't readd KDB here because it's useless
(hint - think what a NMI bit does to a vector) */
#define THERMAL_APIC_VECTOR 0xfa
@@ -102,6 +103,7 @@
void error_interrupt(void);
void reschedule_interrupt(void);
void call_function_interrupt(void);
+void call_function_single_interrupt(void);
void irq_move_cleanup_interrupt(void);
void invalidate_interrupt0(void);
void invalidate_interrupt1(void);
diff --git a/include/asm-x86/mach-default/entry_arch.h b/include/asm-x86/mach-default/entry_arch.h
index bc86146..9283b60 100644
--- a/include/asm-x86/mach-default/entry_arch.h
+++ b/include/asm-x86/mach-default/entry_arch.h
@@ -13,6 +13,7 @@
BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR)
BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
+BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
#endif
/*
diff --git a/include/asm-x86/mach-default/irq_vectors.h b/include/asm-x86/mach-default/irq_vectors.h
index 881c63c..ed7d495 100644
--- a/include/asm-x86/mach-default/irq_vectors.h
+++ b/include/asm-x86/mach-default/irq_vectors.h
@@ -48,6 +48,7 @@
#define INVALIDATE_TLB_VECTOR 0xfd
#define RESCHEDULE_VECTOR 0xfc
#define CALL_FUNCTION_VECTOR 0xfb
+#define CALL_FUNCTION_SINGLE_VECTOR 0xfa
#define THERMAL_APIC_VECTOR 0xf0
/*
diff --git a/include/asm-x86/mach-voyager/entry_arch.h b/include/asm-x86/mach-voyager/entry_arch.h
index 4a1e1e8..ae52624 100644
--- a/include/asm-x86/mach-voyager/entry_arch.h
+++ b/include/asm-x86/mach-voyager/entry_arch.h
@@ -23,4 +23,4 @@
BUILD_INTERRUPT(qic_reschedule_interrupt, QIC_RESCHEDULE_CPI);
BUILD_INTERRUPT(qic_enable_irq_interrupt, QIC_ENABLE_IRQ_CPI);
BUILD_INTERRUPT(qic_call_function_interrupt, QIC_CALL_FUNCTION_CPI);
-
+BUILD_INTERRUPT(qic_call_function_single_interrupt, QIC_CALL_FUNCTION_SINGLE_CPI);
diff --git a/include/asm-x86/mach-voyager/irq_vectors.h b/include/asm-x86/mach-voyager/irq_vectors.h
index 165421f..fda57ad 100644
--- a/include/asm-x86/mach-voyager/irq_vectors.h
+++ b/include/asm-x86/mach-voyager/irq_vectors.h
@@ -33,6 +33,7 @@
#define VIC_RESCHEDULE_CPI 4
#define VIC_ENABLE_IRQ_CPI 5
#define VIC_CALL_FUNCTION_CPI 6
+#define VIC_CALL_FUNCTION_SINGLE_CPI 7
/* Now the QIC CPIs: Since we don't need the two initial levels,
* these are 2 less than the VIC CPIs */
@@ -42,9 +43,10 @@
#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
+#define QIC_CALL_FUNCTION_SINGLE_CPI (VIC_CALL_FUNCTION_SINGLE_CPI - QIC_CPI_OFFSET)
#define VIC_START_FAKE_CPI VIC_TIMER_CPI
-#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_CPI
+#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_SINGLE_CPI
/* this is the SYS_INT CPI. */
#define VIC_SYS_INT 8
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index 1ebaa5c..e3c2480 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -59,9 +59,9 @@
void (*smp_send_stop)(void);
void (*smp_send_reschedule)(int cpu);
- int (*smp_call_function_mask)(cpumask_t mask,
- void (*func)(void *info), void *info,
- int wait);
+
+ void (*send_call_func_ipi)(cpumask_t mask);
+ void (*send_call_func_single_ipi)(int cpu);
};
/* Globals due to paravirt */
@@ -103,17 +103,22 @@
smp_ops.smp_send_reschedule(cpu);
}
-static inline int smp_call_function_mask(cpumask_t mask,
- void (*func) (void *info), void *info,
- int wait)
+static inline void arch_send_call_function_single_ipi(int cpu)
{
- return smp_ops.smp_call_function_mask(mask, func, info, wait);
+ smp_ops.send_call_func_single_ipi(cpu);
+}
+
+static inline void arch_send_call_function_ipi(cpumask_t mask)
+{
+ smp_ops.send_call_func_ipi(mask);
}
void native_smp_prepare_boot_cpu(void);
void native_smp_prepare_cpus(unsigned int max_cpus);
void native_smp_cpus_done(unsigned int max_cpus);
int native_cpu_up(unsigned int cpunum);
+void native_send_call_func_ipi(cpumask_t mask);
+void native_send_call_func_single_ipi(int cpu);
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);
@@ -202,7 +207,5 @@
#endif
extern void smp_alloc_memory(void);
-extern void lock_ipi_call_lock(void);
-extern void unlock_ipi_call_lock(void);
#endif /* __ASSEMBLY__ */
#endif
diff --git a/include/asm-x86/xen/events.h b/include/asm-x86/xen/events.h
index 596312a..f8d57ea 100644
--- a/include/asm-x86/xen/events.h
+++ b/include/asm-x86/xen/events.h
@@ -4,6 +4,7 @@
enum ipi_vector {
XEN_RESCHEDULE_VECTOR,
XEN_CALL_FUNCTION_VECTOR,
+ XEN_CALL_FUNCTION_SINGLE_VECTOR,
XEN_NR_IPIS,
};